Siemens 3NE3230-0B Sitor Fuse Link Semiconductor Fuse

Product Description

The SIEMENS 3NE3230-0B is a SITOR series fuse link designed for semiconductor protection in industrial power systems. SITOR fuses are fast-acting, current-limiting fuses built to protect thyristors, diodes, IGBTs, and other solid-state power devices from damaging overcurrent events. Their high-speed clearing action limits both the let-through current and the energy delivered to downstream components, helping prevent costly semiconductor failure. Licensed electricians and industrial maintenance technicians install these fuses in variable frequency drives, rectifier assemblies, soft starters, and similar power electronics enclosures.

The 3NE3230-0B is suited for industrial and commercial applications where solid-state power conversion equipment requires dedicated overcurrent protection. Typical installation scenarios include motor drive panels, DC bus protection in VFD cabinets, and controlled rectifier systems. This fuse link is intended for use where standard branch-circuit fuses cannot provide the response speed needed to protect semiconductor junctions.

Key Features

• Fast-acting current-limiting design protects thyristors, diodes, and IGBTs
• SITOR series construction engineered to Siemens semiconductor protection standards
• High I-squared-t selectivity limits energy let-through during fault conditions
• Compact form factor suitable for drive and rectifier panel installation
• Single fuse per pack for straightforward replacement stocking

Compatibility

Designed as an OEM-style replacement fuse link for industrial semiconductor protection applications requiring SITOR series fusing in variable frequency drives, rectifier assemblies, and solid-state power control equipment.

Installation Notes

Installation should be performed by a qualified electrician in accordance with the NEC and applicable local codes. De-energize and lock out the equipment fully before removing or installing fuse links. Verify that the replacement fuse matches the voltage rating, current rating, and physical size of the fuse being replaced before installation. Do not use standard branch-circuit fuses as substitutes for semiconductor protection fuses in solid-state drive applications.

Technical Specifications

• Series: SITOR
• Fuse Type: Semiconductor protection fuse link
• Package Quantity: 1 per pack
• Package Dimensions (L x W x H): 7.874 inches x 7.008 inches x 3.346 inches
• Weight: 1.296 pounds
• UPC: 66264308473

Standard Information

• Brand: SIEMENS
• Manufacturer Part Number: 3NE3230-0B